Evolution of tropical biodiversity hotspots: Look to harsh species-poor areas

Researchers argue that tropical species form faster in harsh species-poor areas but accumulate in climatically moderate areas to form hotspots of species diversity. Drawing on decades of expeditions and research in the tropics and the scientists' own knowledge and sampling of tropical bird diversity, the team assembled a large and complete phylogenomic dataset for a detailed investigation of tropical diversification.

source https://www.sciencedaily.com/releases/2020/12/201211115501.htm